Chrysler Neon 1995-1999 Repair Guide

Thermostat

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REMOVAL & INSTALLATION



See Figures 1 through 7

  1. Disconnect the negative battery cable.
  2.  
  3. Drain the cooling system to a level below the thermostat.
  4.  
  5. Disconnect the coolant recovery system hose from the thermostat housing.
  6.  



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Fig. Fig. 1: Disconnect the coolant recovery reservoir hose from the nipple on the thermostat housing

  1. If necessary, you can unfasten the upper radiator hose clamp, then slide the hose off the fitting.
  2.  



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Fig. Fig. 2: Use pliers to unfasten the upper radiator hose clamp, then disconnect the hose from the fitting



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Fig. Fig. 3: View of the radiator outlet fitting (1), recovery reservoir nipple (2) and mounting bolts (3)

  1. Unfasten the thermostat/engine outlet housing connector bolts, then remove the housing. Remove the thermostat from the engine.
  2.  



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Fig. Fig. 4: After unfastening the bolts, pull the housing away to reveal the thermostat



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Fig. Fig. 5: Pull the thermostat and O-ring assembly from the engine

  1. Remove the O-ring, then thoroughly clean the sealing surfaces.
  2.  



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Fig. Fig. 6: You should thoroughly clean the housing mating surfaces before installing the thermostat

To install:
  1. Place the new thermostat into the thermostat housing/outlet connector. Align the vent with the notch in the cylinder head.
  2.  



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Fig. Fig. 7: Note that the vent should face up (see arrow) when installing the thermostat

  1. Install the thermostat housing/outlet connector onto the cylinder head, then secure with the retaining bolts. Tighten the bolts to 9.2 ft. lbs. (12.5 Nm).
  2.  
  3. If removed, attach the upper radiator hose and secure with the hose clamp.
  4.  
  5. Connect the coolant recovery system hose.
  6.  
  7. Fill the cooling system with the proper type and quantity of fluid. Connect the negative battery cable. Start the engine and let it warm up to operating temperatures, then recheck the coolant level and add if necessary.
  8.  

 
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